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OP Asset Management’s Iron Mountain IRM Stock Holding History

OP Asset Management’s Portfolio IRM Stock Details IRM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.22M Buy
33,379
+2,681
+9% +$329K 0.05% 292
2026
Q1 		$3.14M Sell
30,698
-2,219
-7% -$221K 0.03% 351
2025
Q4 		$2.73M Buy
32,917
+283
+0.9% +$26.5K 0.03% 357
2025
Q3 		$3.33M Buy
32,634
+1,861
+6% +$179K 0.04% 310
2025
Q2 		$3.16M Buy
30,773
+464
+2% +$43.7K 0.05% 310
2025
Q1 		$2.61M Buy
+30,309
New +$2.92M 0.04% 339

Other funds holding IRM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $63.2B AUM 17.15% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

OP Asset Management's IRM Position: Q2 2026 in Review

OP Asset Management increased its Iron Mountain (IRM) stake by 8.7% in Q2 2026, buying an estimated $329K and bringing the position to 33,379 shares worth $4.22M. The position accounts for 0.05% of the portfolio, ranked #292.

OP Asset Management first reported a position in IRM in Q1 2025 and has held it in 6 quarters since. 1,174 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

  • OP Asset Management held 33,379 shares of Iron Mountain worth $4.22M as of Q2 2026.
  • OP Asset Management bought 2,681 Iron Mountain shares in Q2 2026, an estimated $329K.
  • Iron Mountain made up 0.05% of OP Asset Management's portfolio in Q2 2026, its #292 holding.
  • OP Asset Management first reported a position in Iron Mountain in Q1 2025 and has held it in 6 quarters since.
  • 1,174 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on OP Asset Management's 13F filing for Q2 2026, filed 28 Jul 2026.